EP 1067734 A3 20030730 - Method for checking a ring-shaped optical network for data transmission between a plurality of network nodes in a motor vehicle
Title (en)
Method for checking a ring-shaped optical network for data transmission between a plurality of network nodes in a motor vehicle
Title (de)
Verfahren zur Überprüfung einer ringförmigen optischen Netzleitung zur Datenübertragung zwischen mehreren Netzteilnehmern in einem Kraftfahrzeug
Title (fr)
Procédé de surveillance d'un réseau optique en anneau de transmission de données entre plusieurs noeuds dans un véhicule à moteur
Publication
Application
Priority
DE 19931838 A 19990709
Abstract (en)
[origin: EP1067734A2] The method involves one subscriber (1) undertaking a master function. A further communications line (7) of star structure has the master subscriber at its centre and connects it directly to the other subscribers (2-6). A start signal is sent to the individual subscribers from the master function subscriber via the communications line and the individual subscribers acknowledge the start signal via the communications line. The master subscriber sends an initialising signal and normal operation of the optical ring line (8) is detected if the master subscriber receives a signal corresp. to a desired signal within a predefined time.
IPC 1-7
H04L 12/42; H04L 12/26; H04L 12/44; H04B 10/00; H04L 12/437; B60R 16/02
IPC 8 full level
B60R 16/02 (2006.01); H04B 10/00 (2006.01); H04B 10/213 (2006.01); H04B 10/27 (2013.01); H04B 10/275 (2013.01); H04L 12/26 (2006.01); H04L 12/403 (2006.01); H04L 12/42 (2006.01); H04L 12/437 (2006.01); H04L 12/44 (2006.01)
CPC (source: EP US)
H04B 10/27 (2013.01 - EP US); H04B 10/2755 (2013.01 - EP US); H04L 12/403 (2013.01 - EP US); H04L 12/42 (2013.01 - EP US); H04L 12/44 (2013.01 - EP US); H04L 43/50 (2013.01 - EP US); H04L 2012/40273 (2013.01 - EP US)
Citation (search report)
- [Y] WO 9912313 A2 19990311 - COMM & CONTROL ELECTRONICS LTD [GB], et al
- [Y] US 5732086 A 19980324 - LIANG SONG-CHYAU S [US], et al
- [A] DE 19511178 A1 19961010 - PHOENIX CONTACT GMBH & CO [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1067734 A2 20010110; EP 1067734 A3 20030730; EP 1067734 B1 20041124; DE 19931838 C1 20011031; DE 50008725 D1 20041230; JP 2001045038 A 20010216; JP 3524847 B2 20040510; US 6643465 B1 20031104
DOCDB simple family (application)
EP 00113357 A 20000623; DE 19931838 A 19990709; DE 50008725 T 20000623; JP 2000208300 A 20000710; US 60765400 A 20000630